<template>
  <div :class="className" :style="{ height: height, width: width }" />
</template>

<script>
import * as echarts from "echarts";
require("echarts/theme/macarons"); // echarts theme
import resize from "./mixins/resize";

export default {
  mixins: [resize],
  props: {
    option: {
      type: Object,
      default() {
        return {};
      },
    },
    className: {
      type: String,
      default: "chart",
    },
    width: {
      type: String,
      default: "100%",
    },
    height: {
      type: String,
      default: "100%",
    },
  },

  data() {
    return {
      chart: null,
    };
  },

  mounted() {
    this.$nextTick(() => {
      this.initChart();
    });
  },
  beforeDestroy() {
    if (!this.chart) {
      return;
    }
    this.chart.dispose();
    this.chart = null;
  },

  watch: {
    // option() {
    //   console.log("watch option");
    //   if (this.chart) {
    //     this.setOptions();
    //   }
    // },
    option: {
      handler(newVal, oldVal) {
        if (this.chart) {
          this.setOptions();
        }
      },
      deep: true,
    },
  },

  methods: {
    initChart() {
      this.chart = echarts.init(this.$el, "macarons");

      this.setOptions();
    },
    setOptions() {
      this.chart.setOption(this.option);
    },
  },
};
</script>
<style scoped>
.right-item {
  padding: 10px;
}
</style>